The Children’s Hemiplegia and Stroke Association CHASA is assisting researchers in the Physical Therapy Department at the University of Minnesota with recruitment of participants for a non-invasive brain stimulation research study. The purpose of this study is to investigate the use of a form of non-invasive brain stimulation, transcranial Direct Current Stimulation tDCS, for interventions in rehabilitation for children who have hemiparesis weakness on one side of the body. This type of non-invasive brain stimulation has shown beneficial behavioral effects and is more cost-effective and portable than previous types. Being able to combine tDCS with other therapies could improve hand function in children with hemiparesis more effectively than each therapy separately.